Week 4: 4/22 - 4/28

This week, we wrote a detailed step-by-step procedure (including materials) for the production of chitosan layered alginate beads; more details can be found under the materials & methods tab. Essentially, we will be mixing 3% w/v sodium alginate into 3% w/v calcium chloride dropwise with a size 22 syringe to form small beads. Then, we will stir the beads in antacid solution to encapsulate the therapeutics. Finally, we will dip each bead into chitosan solution for < 1 second and wash them with distilled water to form the polyelectrolyte complex film.